Plastic 3d printers are not that amazing. Sure you can prototype a bit faster but we have wonderful methods of mass producing plastic parts very cheaply and qui

Plastic 3d printers are not that amazing. Sure you can prototype a bit faster but we have wonderful methods of mass producing plastic parts very cheaply and quickly. 3d printing of plastic is not that revolutionary for the industry. Metal 3d printing is a different story, if that gets cheap enough it will be a real game changer. It's very expensive to make metal parts from solid and you can't use casting except for certain metals. If you could 3d print accurate steel parts cheaply and quickly it could actually replace expensive deductive production processes.